seemps.state.CanonicalMPS.bond_dimensions

method

CanonicalMPS.bond_dimensions()

List of bond dimensions for the matrix product state.

Returns a list or vector of N+1 integers, for an MPS of size N. The integers 1 to N-1 are the bond dimensions between the respective pairs of tensors. The first and last index are 1, as it corresponds to a matrix product state with open boundary conditions.

Returns:

list[int]

List of virtual bond dimensions between MPS tensors, including the boundary ones.

Examples

>>> A = np.ones(1,2,3)
>>> B = np.ones(3,2,1)
>>> mps = MPS([A, B])
>>> mps.bond_dimensions()
[1, 3, 1]